CN113217054A

CN113217054A - Roof bolter is used in tunnel supporting construction

Info

Publication number: CN113217054A
Application number: CN202110539268.2A
Authority: CN
Inventors: 陈永莲
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-08-06

Abstract

The invention relates to the technical field of roadway support construction, and discloses an anchor rod machine for roadway support construction, which comprises a fixed frame, a hydraulic motor, lifting seats, bolts, a steel mesh, a sheath and nuts, wherein the lifting seats are fixedly arranged on two sides of the bottom of the fixed frame, movable support frames are fixedly arranged on the hydraulic motor, the movable support frames are movably clamped with the fixed frame, and a movable shaft of the hydraulic motor is fixedly sleeved with a traveling gear. Through the setting of cutting chain, make under the cutting of cutting chain, make the anchor body can directly get into in the stratum, and at the in-process that gets into, because its self flexibility with cut the rock mass layer by layer, so it receives the influence of external factor less, can be quick send the anchor body into the rock mass, increase the efficiency of construction, simultaneously through the setting of anchor body, make the anchor body not only can regard as the supporting body of digging the hole, but also can directly regard as the carrier of fixed stratum, reduce the installation procedure, improve the efficiency of anchor.

Description

Roof bolter is used in tunnel supporting construction

Technical Field

The invention relates to the technical field of roadway support construction, in particular to a roof bolter for roadway support construction.

Background

In the coal mining in-process, for safety in production, need increase the mine tunnel and strut, consolidate the country rock in tunnel, generally utilize the steel mesh to cooperate with the stock, insert the stock in the rock stratum, then lock the steel mesh, reach and carry out reinforced (rfd) purpose to the tunnel, when inserting the stock, need utilize the stock machine to insert the position of stock to needs, punch, then insert the stock, but this process has some not enough, as follows:

firstly, when the bolting machine drills a rock stratum, the length of the bolt is generally 1-2m, so that a required drill rod is longer, the drill rod is easy to bend and break due to the rotating force and the pushing force during drilling, once the drill rod bends in the rock stratum, the drilling feeding efficiency is reduced, the construction efficiency is influenced, and the construction cost is increased.

Secondly, after the drilling rod inserted the stratum, then the reversal motor, made the drilling rod withdraw from, the diameter of the anchor eye this moment will be slightly bigger than the diameter of anchor rod, so need utilize anchoring agent and stock to put into the anchor eye always, increase the contact force of stock and stratum, but this process not only wastes a large amount of anchoring agent, and, greatly reduced efficiency of construction, simultaneously, the use of anchoring agent is not convenient for follow-up the recovery to the stock.

Disclosure of Invention

The invention provides an anchor rod machine for roadway support construction, which has the advantages of being high in construction efficiency and low in loss, and solves the problems in the background technology.

The invention provides the following technical scheme: a roof bolter for roadway support construction comprises a fixed frame, a hydraulic motor, lifting seats, bolts, a steel mesh, a sheath and nuts, wherein the lifting seats are fixedly arranged at two sides of the bottom of the fixed frame, movable supporting frames are fixedly arranged on the hydraulic motor and movably clamped with the fixed frame, a travelling gear is fixedly sleeved on a movable shaft of the hydraulic motor, racks are fixedly arranged on the fixed frame and positioned at the same horizontal position with the travelling gear, the travelling gear is meshed with the racks, a hole digging power gear is fixedly sleeved at the top end of the movable shaft of the hydraulic motor and positioned above the travelling gear, a push plate is movably sleeved on the movable shaft of the hydraulic motor and positioned between the travelling gear and the hole digging power gear, the push plate is movably clamped with the fixed frame, and an anchoring body is movably arranged on the upper surface of the fixed frame and positioned at the right side of the push plate, the left end of the anchoring body is fixedly connected with a sealing sleeve through a bolt, the push plate is movably clamped with the sealing sleeve, the anchoring body is movably clamped with a cutting chain, the cutting chain is meshed with a hole digging power gear, a limiting wheel is fixedly mounted on the right side of the upper surface of the fixing frame, and the limiting wheel is movably connected with the upper surface of the anchoring body.

Preferably, the anchor body includes the anchor slab, the fixed arc slide that has cup jointed in the outside of anchor slab, the export has evenly been seted up on the lateral wall of anchor slab, the right side activity joint that just is located the export on the lateral wall of arc slide has the closing plate, the right side and the fixedly connected with spring of closing plate, the right-hand member and the anchor slab fixed connection of spring, even fixed mounting has the baffle in the inner chamber of anchor slab, the inside center movable mounting of anchor slab has the pull rod, the both sides of pull rod just are located symmetrical swing joint between two baffles and have the picture peg, the inside of anchor slab just is located the right side of baffle and the left side movable mounting of picture peg has the movable wheel, the left end and the sheath activity of pull rod cup joint, the left end of pull rod its and the left side and the nut threaded connection that are located the sheath.

Preferably, the pull rod comprises a pull rod, a threaded rod is fixedly connected to the left end of the pull rod, the threaded rod is in threaded connection with a nut, and the total length of the pull rod and the threaded rod is greater than the length of the anchor plate.

Preferably, the quotient of the sealing plate and the width of the insert plate is greater than the length of the outlet.

Preferably, the movable chains of the cutting chains are connected through an extension shaft, the extension shaft is movably clamped with the arc-shaped slide ways, and the movable chains of the cutting chains are fixedly provided with cutters.

Preferably, the cross section of the anchoring body is square, and the length of the anchoring body is 1-2 m.

The invention has the following beneficial effects:

1. through the setting of cutting chain, make under the cutting of cutting chain, make the anchor body can directly get into in the stratum, and at the in-process that gets into, because its self flexibility with cut the rock mass layer by layer, so it receives the influence of external factor less, can be quick send the anchor body into the rock mass, increase the efficiency of construction, simultaneously through the setting of anchor body, make the anchor body not only can regard as the supporting body of digging the hole, but also can directly regard as the carrier of fixed stratum, reduce the installation procedure, improve the efficiency of anchor.

2. Through the picture peg, the setting of pull rod and sheath, make to exert the pulling force to the pull rod, the picture peg is followed the export and is washed out and insert in the stratum, lock the anchor slab, effectively prevent anchor slab and rock mass and break away from, increase the contact force between the anchor body and the stratum, improve the intensity of the rock mass around the anchor body, and outside pulling force to the pull rod is big more, it is deepened to make the picture peg insert the rock mass perpendicularly, and provide horizontal resistance, block the outside removal of anchor body, and then improve the locking force to the steel mesh, increase the fastness of roadway support, and simultaneously, follow-up recovery receives, directly press the pull rod, make the picture peg withdraw, can extract the anchor body, carry out recycle, reduce and strut the cost.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a schematic view of a structural anchor form of the present invention;

FIG. 4 is a schematic view of a structural anchor form two of the present invention;

FIG. 5 is a schematic view of a cutting chain according to the present invention;

FIG. 6 is an enlarged view of the point A in FIG. 1.

In the figure: 1. a fixed mount; 2. a hydraulic motor; 3. a movable support frame; 4. a traveling gear; 5. a hole digging power gear; 6. a rack; 7. an anchor; 71. an anchor plate; 72. an arc-shaped slideway; 73. an outlet; 74. a sealing plate; 75. a spring; 76. a partition plate; 77. inserting plates; 78. a pull rod; 781. a pull rod; 782. a threaded rod; 79. a movable wheel; 8. pushing the plate; 9. cutting the chain; 10. a limiting wheel; 11. a lifting seat; 12. sealing sleeves; 13. a bolt; 14. a steel mesh; 15. a sheath; 16. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a roof bolter for roadway support construction comprises a fixed frame 1, a hydraulic motor 2, a lifting seat 11, a bolt 13, a steel mesh 14, a sheath 15 and a nut 16, wherein the lifting seat 11 is fixedly arranged at two sides of the bottom of the fixed frame 1, the hydraulic motor 2 is fixedly provided with a movable support frame 3, the movable support frame 3 is movably clamped with the fixed frame 1, a moving shaft of the hydraulic motor 2 is fixedly sleeved with a traveling gear 4, the fixed frame 1 and the traveling gear 4 are at the same horizontal position and are fixedly provided with a rack 6, the traveling gear 4 is engaged with the rack 6, the top end of the moving shaft of the hydraulic motor 2 and above the traveling gear 4 are fixedly sleeved with a digging hole power gear 5, the moving shaft of the hydraulic motor 2 and between the traveling gear 4 and the digging hole power gear 5 are movably sleeved with a push plate 8, the push plate 8 is movably clamped with the fixed frame 1, the upper surface of mount 1 and the right side movable mounting who is located push pedal 8 have anchor 7, and bolt 13 fixedly connected with seal cover 12 is passed through to the left end of anchor 7, and push pedal 8 and seal cover 12 activity joint, the last movable joint of anchor 7 have cutting chain 9, and cutting chain 9 meshes with digging hole power gear 5, and the right side fixed mounting of mount 1 upper surface has spacing wheel 10, and spacing wheel 10 and the upper surface swing joint of anchor 7.

Wherein, the anchoring body 7 comprises an anchoring plate 71, an arc slideway 72 is fixedly sleeved on the outer side of the anchoring plate 71, outlets 73 are uniformly arranged on the side wall of the anchoring plate 71, a sealing plate 74 is movably clamped on the side wall of the arc slideway 72 and positioned on the right side of the outlet 73, the right side of the sealing plate 74 is fixedly connected with a spring 75, the right end of the spring 75 is fixedly connected with the anchoring plate 71, partition plates 76 are uniformly and fixedly arranged in the inner cavity of the anchoring plate 71, a pull rod 78 is movably arranged in the center of the inner part of the anchoring plate 71, insert plates 77 are symmetrically and movably connected between the two partition plates 76 on both sides of the pull rod 78, movable wheels 79 are movably arranged in the inner part of the anchoring plate 71 and positioned on the right side of the partition plates 76 and on the left side of the insert plates 77, the left end of the pull rod 78 is movably sleeved with the sheath 15, the left end of the pull rod 78 is positioned on the left side of the sheath 15 and in threaded connection with the nut 16, after the anchoring body 7 is inserted into a rock stratum, the sealing sleeve 12 is dismounted, the steel net 14 is attached to the rock wall, then the jacket 15 is used for clamping, the nut 16 is screwed with the left end of the pull rod 78 through the torque wrench, the steel net 14 is locked through the jacket 15, meanwhile, the pull rod 78 is applied with pulling force, the inserting plate 77 is punched out from the outlet 73 and inserted into the rock stratum, the anchor plate 71 is locked, the inserting plate 77 and the jacket 15 interact, the contact force between the anchoring body 7 and the rock stratum is increased, and the strength of the rock mass around the anchoring body 7 is improved.

Wherein, the pull rod 78 includes pull rod 781, the left end fixedly connected with threaded rod 782 of pull rod 781, threaded rod 782 and nut 16 threaded connection, the total length of pull rod 781 and threaded rod 782 is greater than the length of anchor plate 71, when anchor body 7 is accomplished to insert in the stratum, can make pull rod 78 reserve sufficient length installation steel mesh 14, sheath 15 and nut 16 to conveniently exert pulling force to pull rod 78, make vapour can make picture peg 77 insert in the stratum.

The sum of the quotient of the sealing plate 74 and the width of the inserting plate 77 is larger than the length of the outlet 73, so that after the inserting plate 77 is inserted into a rock stratum, the sealing plate 74 can seal the outlet 73, broken stones are prevented from entering the inside of the anchor plate 71, the cleaning procedure in the subsequent recovery process is reduced, and the cleaning cost is reduced.

Wherein, connect through the extension axle between the activity chain of cutting chain 9, fixed mounting has the cutter on the activity chain of extension axle and arc slide 72 activity joint cutting chain 9, utilizes cutting chain 9 to excavate the stratum in the anchor plate 71 outside for in anchor plate 71 can go deep into the stratum, avoid anchor body 7 to receive the bending of profit, simultaneously after anchor body 7 gets into the rock mass, cutting chain 9 is directly lifted off to outside, will cut chain 9 and pull out, so that follow-up used repeatedly reduces and digs the hole cost.

The cross section of the anchoring body 7 is square, the length of the anchoring body is 1-2m, the structural strength of the anchoring body 7 is improved, and the probability of deformation caused by compression is reduced.

The working principle is that after the cutting chain 9 is clamped with the arc-shaped slide way 72 and meshed and sleeved with the hole digging power gear 5, the anchoring body 7 is placed on the upper surface of the fixing frame 1, then, the left end of the anchoring body 7 is pressed against the hole digging position by the lifting seat 11, the hydraulic motor 2 is connected with the hydraulic pump, the hydraulic motor 2 is started, the hydraulic motor 2 respectively drives the advancing gear 4 and the hole digging power gear 5 to rotate, the hole digging power gear 5 rotates to drive the cutting chain 9 to rotate clockwise, meanwhile, the advancing gear 4 drives the hydraulic motor 2 to move rightwards under the action of the rack 6, the hydraulic motor 2 pushes the anchoring body 7 to translate through the push plate 8, so that the cutting chain 9 is contacted with a rock body and cut the rock body, when the hydraulic motor 2 runs to the rightmost end of the fixing frame 1 to stop, the extension shaft of the cutting chain 9 is detached, so that the cutting chain 9 is disconnected, pulling on one end of the cutting chain 9. The cutting chain 9 is pulled out of the anchoring body 7, the fixing frame 1 is removed, the sealing sleeve 12 is disassembled, the steel mesh 14 is attached to the rock wall, the sheath 15 is sleeved on the pull rod 78 to press the steel mesh 14, the nut 16 and the threaded rod 782 are locked by a torque wrench, the pull rod 78 is pulled out, the inserting plate 77 is punched out of the outlet 73 and inserted into the rock layer, the anchor plate 71 is locked, and the nut 16, the pull rod 78, the inserting plate 77 and the rock body interact to lock the steel mesh 14; when retracting, the nut 16 is removed, the pull rod 78 is pressed to retract the insert plate 77, and then the anchor 7 is directly pulled out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a roadway support builds and uses roofbolter, includes mount (1), hydraulic motor (2), lift seat (11), bolt (13), steel mesh (14), sheath (15) and nut (16), lift seat (11) fixed mounting is in the bottom both sides of mount (1), its characterized in that: the movable support frame (3) is fixedly installed on the hydraulic motor (2), the movable support frame (3) is movably clamped with the fixed frame (1), a travelling gear (4) is fixedly sleeved on a movable shaft of the hydraulic motor (2), a rack (6) is fixedly installed on the fixed frame (1) and is located at the same horizontal position with the travelling gear (4), the travelling gear (4) is meshed with the rack (6), a hole digging power gear (5) is fixedly sleeved at the top end of the movable shaft of the hydraulic motor (2) and is located above the travelling gear (4), a push plate (8) is movably sleeved on the movable shaft of the hydraulic motor (2) and is located between the travelling gear (4) and the hole digging power gear (5), the push plate (8) is movably clamped with the fixed frame (1), an anchoring body (7) is movably installed on the upper surface of the fixed frame (1) and is located on the right side of the push plate (8), the left end of the anchor body (7) passes through bolt (13) fixedly connected with seal cover (12), push pedal (8) and seal cover (12) activity joint, the activity joint has cutting chain (9) on the anchor body (7), cutting chain (9) with dig hole power gear (5) meshing, the right side fixed mounting of mount (1) upper surface has spacing wheel (10), the upper surface swing joint of spacing wheel (10) and anchor body (7).

2. The bolting machine for supporting and constructing roadway according to claim 1, wherein: the anchor body (7) includes anchor plate (71), arc slide (72) have been cup jointed to the outside of anchor plate (71) is fixed, export (73) have evenly been seted up on the lateral wall of anchor plate (71), the right side activity joint that just is located export (73) on the lateral wall of arc slide (72) has closing plate (74), the right side and the fixedly connected with spring (75) of closing plate (74), the right-hand member and anchor plate (71) fixed connection of spring (75), even fixed mounting has baffle (76) in the inner chamber of anchor plate (71), the inside center movable mounting of anchor plate (71) has pull rod (78), the both sides of pull rod (78) just are located symmetrical swing joint between two baffle (76) and have picture peg (77), the inside of anchor plate (71) just is located the right side of baffle (76) and the left side movable mounting of picture peg (77) has movable pulley (79), the left end of the pull rod (78) is movably sleeved with the sheath (15), and the left end of the pull rod (78) is positioned on the left side of the sheath (15) and is in threaded connection with the nut (16).

3. The bolting machine for supporting and constructing roadway according to claim 2, wherein: pull rod (78) are including pull rod (781), the left end fixedly connected with threaded rod (782) of pull rod (781), threaded rod (782) and nut (16) threaded connection, the total length of pull rod (781) and threaded rod (782) is greater than the length of anchor plate (71).

4. The bolting machine for supporting and constructing roadway according to claim 2, wherein: the quotient of the sealing plate (74) and the width of the insert plate (77) is greater than the length of the outlet opening (73).

5. The bolting machine for supporting and constructing roadway according to claim 1, wherein: the movable chain of the cutting chain (9) is connected through an extension shaft, the extension shaft is movably connected with the arc-shaped slide way (72) in a clamping mode, and a cutter is fixedly mounted on the movable chain of the cutting chain (9).

6. The bolting machine for supporting and constructing roadway according to claim 1, wherein: the cross section of the anchoring body (7) is square, and the length of the anchoring body is 1-2 m.